1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
use super::{Client, ModelInfo};
use crate::repl::ReplyStreamHandler;
use crate::{config::SharedConfig, utils::get_env_name};
use anyhow::{anyhow, bail, Context, Result};
use async_trait::async_trait;
use eventsource_stream::Eventsource;
use futures_util::StreamExt;
use inquire::{Confirm, Text};
use reqwest::{Client as ReqwestClient, Proxy, RequestBuilder};
use serde::Deserialize;
use serde_json::{json, Value};
use std::env;
use std::time::Duration;
const API_URL: &str = "https://api.openai.com/v1/chat/completions";
#[allow(clippy::module_name_repetitions)]
#[derive(Debug)]
pub struct OpenAIClient {
global_config: SharedConfig,
local_config: OpenAIConfig,
model_info: ModelInfo,
}
#[allow(clippy::struct_excessive_bools)]
#[derive(Debug, Clone, Deserialize, Default)]
pub struct OpenAIConfig {
pub api_key: Option<String>,
pub organization_id: Option<String>,
pub proxy: Option<String>,
/// Set a timeout in seconds for connect to openai server
pub connect_timeout: Option<u64>,
}
#[async_trait]
impl Client for OpenAIClient {
fn get_config(&self) -> &SharedConfig {
&self.global_config
}
async fn send_message_inner(&self, content: &str) -> Result<String> {
let builder = self.request_builder(content, false)?;
openai_send_message(builder).await
}
async fn send_message_streaming_inner(
&self,
content: &str,
handler: &mut ReplyStreamHandler,
) -> Result<()> {
let builder = self.request_builder(content, true)?;
openai_send_message_streaming(builder, handler).await
}
}
impl OpenAIClient {
pub fn new(
global_config: SharedConfig,
local_config: OpenAIConfig,
model_info: ModelInfo,
) -> Self {
Self {
global_config,
local_config,
model_info,
}
}
pub fn name() -> &'static str {
"openai"
}
pub fn list_models(_local_config: &OpenAIConfig) -> Vec<(String, usize)> {
vec![
("gpt-3.5-turbo".into(), 4096),
("gpt-3.5-turbo-16k".into(), 16384),
("gpt-4".into(), 8192),
("gpt-4-32k".into(), 32768),
]
}
pub fn create_config() -> Result<String> {
let mut client_config = format!("clients:\n - type: {}\n", Self::name());
let api_key = Text::new("API key:")
.prompt()
.map_err(|_| anyhow!("An error happened when asking for api key, try again later."))?;
client_config.push_str(&format!(" api_key: {api_key}\n"));
let ans = Confirm::new("Has Organization?")
.with_default(false)
.prompt()
.map_err(|_| anyhow!("Not finish questionnaire, try again later."))?;
if ans {
let organization_id = Text::new("Organization ID:").prompt().map_err(|_| {
anyhow!("An error happened when asking for proxy, try again later.")
})?;
client_config.push_str(&format!(" organization_id: {organization_id}\n"));
}
let ans = Confirm::new("Use proxy?")
.with_default(false)
.prompt()
.map_err(|_| anyhow!("Not finish questionnaire, try again later."))?;
if ans {
let proxy = Text::new("Set proxy:").prompt().map_err(|_| {
anyhow!("An error happened when asking for proxy, try again later.")
})?;
client_config.push_str(&format!(" proxy: {proxy}\n"));
}
Ok(client_config)
}
fn request_builder(&self, content: &str, stream: bool) -> Result<RequestBuilder> {
let api_key = if let Some(api_key) = &self.local_config.api_key {
api_key.to_string()
} else if let Ok(api_key) = env::var(get_env_name("api_key")) {
api_key.to_string()
} else {
bail!("Miss api_key")
};
let messages = self.global_config.read().build_messages(content)?;
let mut body = json!({
"model": self.model_info.name,
"messages": messages,
});
if let Some(v) = self.global_config.read().get_temperature() {
body.as_object_mut()
.and_then(|m| m.insert("temperature".into(), json!(v)));
}
if stream {
body.as_object_mut()
.and_then(|m| m.insert("stream".into(), json!(true)));
}
let client = {
let mut builder = ReqwestClient::builder();
if let Some(proxy) = &self.local_config.proxy {
builder = builder
.proxy(Proxy::all(proxy).with_context(|| format!("Invalid proxy `{proxy}`"))?);
}
let timeout = Duration::from_secs(self.local_config.connect_timeout.unwrap_or(10));
builder
.connect_timeout(timeout)
.build()
.with_context(|| "Failed to build client")?
};
let mut builder = client.post(API_URL).bearer_auth(api_key).json(&body);
if let Some(organization_id) = &self.local_config.organization_id {
builder = builder.header("OpenAI-Organization", organization_id);
}
Ok(builder)
}
}
pub(crate) async fn openai_send_message(builder: RequestBuilder) -> Result<String> {
let data: Value = builder.send().await?.json().await?;
if let Some(err_msg) = data["error"]["message"].as_str() {
bail!("Request failed, {err_msg}");
}
let output = data["choices"][0]["message"]["content"]
.as_str()
.ok_or_else(|| anyhow!("Unexpected response {data}"))?;
Ok(output.to_string())
}
pub(crate) async fn openai_send_message_streaming(
builder: RequestBuilder,
handler: &mut ReplyStreamHandler,
) -> Result<()> {
let res = builder.send().await?;
if !res.status().is_success() {
let data: Value = res.json().await?;
if let Some(err_msg) = data["error"]["message"].as_str() {
bail!("Request failed, {err_msg}");
}
bail!("Request failed");
}
let mut stream = res.bytes_stream().eventsource();
while let Some(part) = stream.next().await {
let chunk = part?.data;
if chunk == "[DONE]" {
break;
}
let data: Value = serde_json::from_str(&chunk)?;
let text = data["choices"][0]["delta"]["content"]
.as_str()
.unwrap_or_default();
if text.is_empty() {
continue;
}
handler.text(text)?;
}
Ok(())
}
|
